Husbands who don't run, and don't get it. Husbands who do, but need their fix, too. Children who can't let go. Here's how two women reconcile marriage, motherhood, and the glee and guilt of breaking away.

No one knows how to push through a bad patch better than Scott Jurek, one of the greatest ultramarathoners in history. But recently, Jurek has endured a string of painful setbacks that have him questioning everything—even if he wants to keep running.